Author: Remi Meier
Branch: c7-refactor
Changeset: r807:656a920108f2
Date: 2014-02-21 13:55 +0100
http://bitbucket.org/pypy/stmgc/changeset/656a920108f2/
Log: more cleanups in test_random
diff --git a/c7/test/test_random.py b/c7/test/test_random.py
--- a/c7/test/test_random.py
+++ b/c7/test/test_random.py
@@ -17,6 +17,12 @@
exec cmd in globals(), self.content
+def raising_call(conflict, func, *args):
+ arguments = ", ".join(map(str, args))
+ if conflict:
+ return "py.test.raises(Conflict, %s, %s)" % (func, arguments)
+ return "%s(%s)" % (func, arguments)
+
class WriteWriteConflictNotTestable(Exception):
# How can I test a write-write conflict between
@@ -227,6 +233,16 @@
self.ex.do('# conflict while pushing to other threads: %s' %
trs.objs_in_conflict)
+ def check_if_can_become_inevitable(self, trs):
+ assert not trs.check_must_abort()
+ for ts in self.thread_states:
+ other_trs = ts.transaction_state
+ if (other_trs and trs is not other_trs
+ and other_trs.inevitable):
+ self.ex.do("# there is another inevitable transaction:")
+ trs.set_must_abort()
+ break
+
def check_for_write_write_conflicts(self, trs):
assert not trs.check_must_abort()
for ts in self.thread_states:
@@ -284,9 +300,7 @@
#
if aborts:
thread_state.abort_transaction()
- ex.do('py.test.raises(Conflict, self.commit_transaction)')
- else:
- ex.do('self.commit_transaction()')
+ ex.do(raising_call(aborts, "self.commit_transaction"))
class OpAbortTransaction(Operation):
def do(self, ex, global_state, thread_state):
@@ -300,20 +314,15 @@
class OpBecomeInevitable(Operation):
def do(self, ex, global_state, thread_state):
trs = thread_state.transaction_state
- for ts in global_state.thread_states:
- other_trs = ts.transaction_state
- if (other_trs and trs is not other_trs
- and other_trs.inevitable):
- trs.set_must_abort()
- break
+ global_state.check_if_can_become_inevitable(trs)
thread_state.push_roots(ex)
+ ex.do(raising_call(trs.check_must_abort(),
+ "stm_become_inevitable"))
if trs.check_must_abort():
thread_state.abort_transaction()
- ex.do('py.test.raises(Conflict, stm_become_inevitable)')
else:
trs.inevitable = True
- ex.do('stm_become_inevitable()')
thread_state.pop_roots(ex)
thread_state.reload_roots(ex)
@@ -362,18 +371,10 @@
class OpWrite(Operation):
def do(self, ex, global_state, thread_state):
r = thread_state.get_random_root()
+ trs = thread_state.transaction_state
is_ref = global_state.has_ref_type(r)
- if is_ref:
- v = thread_state.get_random_root()
- else:
- v = ord(global_state.rnd.choice("abcdefghijklmnop"))
- trs = thread_state.transaction_state
#
- if is_ref:
- ex.do("idx = (stm_get_obj_size(%s) - HDR) / WORD - 1" % r)
- else:
- ex.do("offset = stm_get_obj_size(%s) - 1" % r)
- #
+ # check for possible write-write conflict:
was_written = False
try:
# HACK to avoid calling write_root() just yet because we have to
@@ -384,23 +385,27 @@
except WriteWriteConflictNotTestable:
if not was_written:
trs.write_set.remove(r)
- ex.do("# this is an untestable write-write conflict between an")
- ex.do("# inevitable and a normal transaction :(")
+ ex.do("# writing to %s produces an untestable write-write" % r)
+ ex.do("# conflict between an inevitable and a normal transaction
:(")
return
#
+ # decide on a value to write
+ if is_ref:
+ v = thread_state.get_random_root()
+ ex.do("idx = (stm_get_obj_size(%s) - HDR) / WORD - 1" % r)
+ else:
+ v = ord(global_state.rnd.choice("abcdefghijklmnop"))
+ ex.do("offset = stm_get_obj_size(%s) - 1" % r)
trs.write_root(r, v)
#
if trs.check_must_abort():
thread_state.abort_transaction()
- if is_ref:
- ex.do("py.test.raises(Conflict, stm_set_ref, %s, idx, %s)" %
(r, v))
- else:
- ex.do("py.test.raises(Conflict, stm_set_char, %s, %s, offset)"
% (r, repr(chr(v))))
+ if is_ref:
+ ex.do(raising_call(trs.check_must_abort(),
+ "stm_set_ref", r, "idx", v))
else:
- if is_ref:
- ex.do("stm_set_ref(%s, idx, %s)" % (r, v))
- else:
- ex.do("stm_set_char(%s, %s, offset)" % (r, repr(chr(v))))
+ ex.do(raising_call(trs.check_must_abort(),
+ "stm_set_char", r, repr(chr(v)), "offset"))
class OpRead(Operation):
def do(self, ex, global_state, thread_state):
@@ -445,9 +450,10 @@
#
if conflicts:
thread_state.abort_transaction()
- ex.do('py.test.raises(Conflict, self.switch, %s)' %
thread_state.num)
- else:
- ex.do('self.switch(%s)' % thread_state.num)
+
+ ex.do(raising_call(conflicts,
+ "self.switch", thread_state.num))
+
# ========== TEST GENERATION ==========
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